负性认知加工偏向问卷在老年人中应用的信效度分析

Reliability and validity of Negative Cognitive Processing Bias Questionnaire in older adults

目的:检验负性认知加工偏向问卷(NCPBQ)在老年人群中应用的信度和效度。方法:采用负性认知加工偏向问卷、中文版老年抑郁量表对在北京市某三级甲等医院和某社区卫生服务中心就诊的474名老年人进行面对面调查,以检验问卷的信度和效度。结果:NCPBQ条目水平内容指数(I-CVI)为0.833~1.000,全体一致量表水平内容效度指数(S-CVI/UA)为0.813,平均量表水平内容效度指数(S-CVI/Ave)为0.969。问卷总分及其各维度的Cronbach'sα系数为0.849,0.850,0.942;随机抽取30名老年人2~4周后进行重测,重测信度为0.858~0.916。探索性因子分析提取负性记忆偏向、负性注意偏向、负性沉思偏向3个因子可解释变异量的73.423%。NCPBQ中记忆偏向、注意偏向、沉思偏向3个维度与老年抑郁量表得分呈正相关(P<0.05)。结论:NCPBQ在老年人群中具有良好的信效度,可用于老年人的相关研究。

Objective:To test the reliability and validity of the Negative C-ognitive Processing Bias Questionnaire(NCPBQ)in the elderly.Methods:A total of 474 elderly visited in one tertiary grade A hospital and one community health service center in Beijing were investigated by NC-PBQ and Geriatric Depression Scale(GDS).Results:The I-C-VI of NCPBQ were 0.833-1.000,S-CVI/UA was 0.813,S-CVI/Ave was 0.969.The Cronbach's alpha coefficients of the NCPBQ and its dimensions ranged from 0.849 to 0.942.The test-retest reliability ranged from 0.858 to 0.916.The exploratory factor extracted three factors,which were memory bias,attention bias and rumination bias,and they could explain 73.423%of the total variance.The memory bias,attention bias and rumination bias in NCPBQ were positively correlated with depression scores in the elderly(P<0.05).Conclusions:NCPBQ had good reliability and validity in this elderly sample,so it could be used in relevant studies on the elderly.